Questions on Algebra: Systems of Linear Equations answered by real tutors!

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> Questions on Algebra: Systems of Linear Equations answered by real tutors!      Log On


   



Tutors Answer Your Questions about Linear-systems (FREE)


Question 939461: please help solve this equation
3x-7y+5(x+3y)-4(y-2x)

Click here to see answer by ezan(1) About Me 

Question 945064: find the equation of the line that is parallel to the graph of 3x-5y=3 and passes through (-6,-6). write the equation in standard form
Click here to see answer by josgarithmetic(39618) About Me 
Question 945064: find the equation of the line that is parallel to the graph of 3x-5y=3 and passes through (-6,-6). write the equation in standard form
Click here to see answer by lwsshak3(11628) About Me 

Question 945144: Are the graphs of the lines in the pair parallel? Explain.


y = 3x + 10

12x – 3y = –36

Click here to see answer by MathLover1(20850) About Me 
Question 945144: Are the graphs of the lines in the pair parallel? Explain.


y = 3x + 10

12x – 3y = –36

Click here to see answer by macston(5194) About Me 

Question 945322: the perimeter of a rectangle is 46cm the length of the rectangle is 4cm less than twice the width. find the width of the rectangle
Click here to see answer by macston(5194) About Me 

Question 945336: linear and constant functions
f(x)=4









Click here to see answer by Alan3354(69443) About Me 

Question 945326: 2x+y=9
4X-y=-15
Solve by sub.

Click here to see answer by Alan3354(69443) About Me 

Question 945378: Use substitution to find where the two parabolas below intersect. Then confirm your solution by graphing both on the same set of axes.
y=x^2+5
y=x^2+2x+1

Click here to see answer by macston(5194) About Me 

Question 945381: The measure of angle C = 13x - 6 and the measure of angle E = 6x + 34
What is X?

Click here to see answer by josgarithmetic(39618) About Me 

Question 945377: −x+5y=−5
y=−x+11
x =
y =

Click here to see answer by Fombitz(32388) About Me 

Question 945436: The point begin ordered pair, 2, negative 4, end ordered pair is the solution to which of the following systems of equations?
Click here to see answer by Fombitz(32388) About Me 

Question 945464: What is f(-2) using direct substitution

Click here to see answer by Fombitz(32388) About Me 

Question 945462: What is f(-2) using direct substitution

Click here to see answer by Fombitz(32388) About Me 

Question 945604: Need to solve this by using elimination method.
2x+9y=3.75
x+y=6.5

Click here to see answer by MathLover1(20850) About Me 

Question 945699: 21=-3x-7y*-9
63=-7x-9y*-7
find point of intersection by using linear combinations

Click here to see answer by Alan3354(69443) About Me 

Question 945898: solve using substitution
2y=x+4
5+y=2x

Click here to see answer by TimothyLamb(4379) About Me 

Question 945910: f(x)=120+y
Click here to see answer by Alan3354(69443) About Me 

Question 946348: Solve using systems of equations:
x+9=(460/4)
-(460/4) is a fraction.
-When i tried this intitally, I got x=115, but it was marked wrong.

Click here to see answer by amarjeeth123(569) About Me 
Question 946348: Solve using systems of equations:
x+9=(460/4)
-(460/4) is a fraction.
-When i tried this intitally, I got x=115, but it was marked wrong.

Click here to see answer by DrBeeee(684) About Me 

Question 946741: the page numbers of an open book totalled 973. at what pages was the book opened?
Click here to see answer by Fombitz(32388) About Me 

Question 946860: Solve the system using elimination. Write the solution as an ordered pair.
x + 2y = -7
3x - 4y = -1

Click here to see answer by stanbon(75887) About Me 

Question 946870: You have a total of 25 coins, all nickels ($0.05) and quarters ($0.25). The total value is $3.85. Write and solve a system of equations to find the number of nickels, n, and quarters, q
Click here to see answer by stanbon(75887) About Me 

Question 946867: Which ordered pair is the solution of the system?

6x - 6y = 2
3x + 9y = -7

(1/3, 2/3)
(2/3, -1/3)
(-1/3, -2/3)
(-2/3, 1/3)

Click here to see answer by stanbon(75887) About Me 

Question 946887: Solve the system using substitution. Write the solution as an ordered pair.
y = 2x - 9
x + 3y = 8

Click here to see answer by Fombitz(32388) About Me 

Question 946845: Translate this word problem as a system of equations and then solve using substitution.
Find two numbers whose sum is 58 and whose difference is 16.

Click here to see answer by Fombitz(32388) About Me 

Question 946900: y=6x-11 -2x-3y=-7 by substuting

Click here to see answer by Fombitz(32388) About Me 

Question 946897: Solve the system using elimination. Write the solution as an ordered pair.
4x + 3y = 24
4x - 3y = -24

Click here to see answer by Fombitz(32388) About Me 

Question 946873: Solve the system using elimination. Write the solution as an ordered pair.
4x + 3y = 24
4x - 3y = -24

Click here to see answer by Alan3354(69443) About Me 

Question 946957: .5x + y = 9
1.6x + 0.2y = 13
to solve this equation, use subsitution

Click here to see answer by MathLover1(20850) About Me 

Question 946999: will you show me the answer to
4x-5y=5
6x-5y=25

Click here to see answer by amarjeeth123(569) About Me 

Question 947034: what is (-4,-6) m=-2 in 3 equations encluding standard and slope intercept

Click here to see answer by josgarithmetic(39618) About Me 
Question 947034: what is (-4,-6) m=-2 in 3 equations encluding standard and slope intercept

Click here to see answer by MathTherapy(10552) About Me 

Question 947116: A farmer raises wheat and corn on 430 acres of land. He wants to plant 62 more acres of wheat than corn. How many acres of each should he plant?

A. Write a system of equations for the problem.
B. Solve your system of equations. Make sure to show/explain all of your work for credit

Click here to see answer by stanbon(75887) About Me 
Question 947116: A farmer raises wheat and corn on 430 acres of land. He wants to plant 62 more acres of wheat than corn. How many acres of each should he plant?

A. Write a system of equations for the problem.
B. Solve your system of equations. Make sure to show/explain all of your work for credit

Click here to see answer by Theo(13342) About Me 

Question 947123: Jamie has 300 ft of fencing to enclose a rectangular pasture. The pasture's length is to be 10 ft less than 3 times the width. Find the width of the garden.

A. Write a system of equations for the problem.
B. Solve your system. Make sure to show/explain your work for credit.
Please solve as quickly as possible

Click here to see answer by stanbon(75887) About Me 

Question 947121: Jamie has 300 ft of fencing to enclose a rectangular pasture. The pasture's length is to be 10 ft less than 3 times the width. Find the width of the garden.

A. Write a system of equations for the problem.
B. Solve your system. Make sure to show/explain your work for credit.

Click here to see answer by stanbon(75887) About Me 

Question 947119: Jamie has 300 ft of fencing to enclose a rectangular pasture. The pasture's length is to be 10 ft less than 3 times the width. Find the width of the garden.

A. Write a system of equations for the problem.
B. Solve your system. Make sure to show/explain your work for credit.

Click here to see answer by stanbon(75887) About Me 

Question 947028: what is the coordinate (6,5) m=3 in 3 equations encluding standard and slope intercept I'm having trouble
Click here to see answer by Fombitz(32388) About Me 

Question 947149: Solve the system using substitution
y=3x+11
y=-2x+1

Click here to see answer by Fombitz(32388) About Me 

Question 947151: Which of the following is true of the graph y > = -x + 1

The line is solid, and the shading is below the line
The line is dashed, and the shading is below the line
The line is solid, and the shading is above the line
The line is dashed, and the shading is above the line

Click here to see answer by Fombitz(32388) About Me 

Question 947152: The graph of which of the following is shaded above the line?

x - y < 9
x + y < 9
x + y < -9
y - x < 9

Click here to see answer by Fombitz(32388) About Me 

Question 947150: 7.
Which inequality models the following situation?

You want to spend less than $20 on asparagus and bananas. Asparagus is $3,00 per pound and bananas are $.50 per pound. Let a represent the weight of the asparagus and b represent the weight of the bananas.


3a + 0.5b <= 20
3a + 0.5b >= 20
3a + 0.5b < 20
3a + 0.5b > 20

Click here to see answer by macston(5194) About Me 

Question 947154: I keep trying to get help with this problem but nobody answers. HELP.
Suppose your class is raising money for the Red Cross. You make $5 on each basket of fruit and $3 on each box of cheese that you sell. How many items of each type must you sell to raise more than $150?

Write a linear inequality that describes this situation.




8y >= 150
5x + 3y > 150
8y > 150

5x + 3y >= 150

Click here to see answer by macston(5194) About Me 

Question 947160: Solve the system of equations using elimination.
2x+5y=13
3x-5y=7

Click here to see answer by Fombitz(32388) About Me 

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515